Seiko Cal. 3878 - 680

The 3878-680 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3878 caliber with 25j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-942b95094ad4]

Also known as: Rally, Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

37mm

Case Thickness

8.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

180m

Dial Color

Burgundy

Jewels

25j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1977

Related Models

• Seiko 3833-179
• Seiko 7026-409
• Seiko 6293-157
• Seiko 5663-256
• Seiko 5655-741
• Seiko 7179-662
• Seiko 6198-885
• Seiko 6685-947
• Seiko 6695-268
• Seiko 6282-603
• Seiko 4457-311
• Seiko 6627-646